All the simulation runs are failing even though the mesh is proper.

Hi @ankit_j , Setup looks ok, but two things both relating to instance could be the issue. You are writing every 100 steps, this requires alot of storage and you might be running out of it, since this is steady state, only final results are of interest therefor just write the end time. 16 core ins…

Thanks @1318980 I will try it out and report back

Hi @1318980 I set the writing interval to 1000 and it still failed. I gave minimal boundary conditions but still the Simulation Run 12 failed.

[image] 1318980: 16 core instance might be running out of ram and therefore a larger instance may be required. did you try on 32 cores? Best, Darren

I don’t have access to 32 CORES

Hi @ankit_j ! The boundary conditions are set wrong. You are missing a symmetry boundary condition and the ones you defined as no-slip are not correct. Maybe change that first by having a look at FSAE templates in the public projects category. Best, Jousef

Thanks @jousefm For the Simulation Run 12 I have set minimal Boundary Conditions.I set Velocity inlet and pressure outlet and no slip wall.Yet the run is failing.

Hi @ankit_j ! Try that setup please and tell me if it works: Note that I decreased the time to save core hours and once we see that the residuals look good you might increase the runtime according to your purposes. Best, Jousef

Hi @ankit_j I am running your simulation on 32 cores and has proceeded past the point you had troubles (700 iterations and I am on 1300 iterations) it therefore seems that lack of memory is the issue, and suggest that you reduce your mesh size (to reduce the memory footprint), I’ll keep running the …

Thanks @1318980 I will try with that

SimScale CAE Forum

The simulation runs keep of failing

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ankit_j November 12, 2018, 2:04pm 25

Its just that it does not have enough core hours left.
would it be possible to upgrade my account?